Commit 92f9ccca authored by Subrahmanya Lingappa's avatar Subrahmanya Lingappa Committed by Bjorn Helgaas

PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver DT bindings

Add DT bindings for the Mobiveil PCIe Host Bridge IP driver and update the
vendor prefixes file.
Signed-off-by: default avatarSubrahmanya Lingappa <l.subrahmanya@mobiveil.co.in>
Signed-off-by: default avatarLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
parent 60cc43fc
* Mobiveil AXI PCIe Root Port Bridge DT description
Mobiveil's GPEX 4.0 is a PCIe Gen4 root port bridge IP. This configurable IP
has up to 8 outbound and inbound windows for the address translation.
Required properties:
- #address-cells: Address representation for root ports, set to <3>
- #size-cells: Size representation for root ports, set to <2>
- #interrupt-cells: specifies the number of cells needed to encode an
interrupt source. The value must be 1.
- compatible: Should contain "mbvl,gpex40-pcie"
- reg: Should contain PCIe registers location and length
"config_axi_slave": PCIe controller registers
"csr_axi_slave" : Bridge config registers
"gpio_slave" : GPIO registers to control slot power
"apb_csr" : MSI registers
- device_type: must be "pci"
- apio-wins : number of requested apio outbound windows
default 2 outbound windows are configured -
1. Config window
2. Memory window
- ppio-wins : number of requested ppio inbound windows
default 1 inbound memory window is configured.
- bus-range: PCI bus numbers covered
- interrupt-controller: identifies the node as an interrupt controller
- #interrupt-cells: specifies the number of cells needed to encode an
interrupt source. The value must be 1.
- interrupt-parent : phandle to the interrupt controller that
it is attached to, it should be set to gic to point to
ARM's Generic Interrupt Controller node in system DT.
- interrupts: The interrupt line of the PCIe controller
last cell of this field is set to 4 to
denote it as IRQ_TYPE_LEVEL_HIGH type interrupt.
- interrupt-map-mask,
interrupt-map: standard PCI properties to define the mapping of the
PCI interface to interrupt numbers.
- ranges: ranges for the PCI memory regions (I/O space region is not
supported by hardware)
Please refer to the standard PCI bus binding document for a more
detailed explanation
Example:
++++++++
pcie0: pcie@a0000000 {
#address-cells = <3>;
#size-cells = <2>;
compatible = "mbvl,gpex40-pcie";
reg = <0xa0000000 0x00001000>,
<0xb0000000 0x00010000>,
<0xff000000 0x00200000>,
<0xb0010000 0x00001000>;
reg-names = "config_axi_slave",
"csr_axi_slave",
"gpio_slave",
"apb_csr";
device_type = "pci";
apio-wins = <2>;
ppio-wins = <1>;
bus-range = <0x00000000 0x000000ff>;
interrupt-controller;
interrupt-parent = <&gic>;
#interrupt-cells = <1>;
interrupts = < 0 89 4 >;
interrupt-map-mask = <0 0 0 7>;
interrupt-map = <0 0 0 0 &pci_express 0>,
<0 0 0 1 &pci_express 1>,
<0 0 0 2 &pci_express 2>,
<0 0 0 3 &pci_express 3>;
ranges = < 0x83000000 0 0x00000000 0xa8000000 0 0x8000000>;
};
......@@ -203,6 +203,7 @@ lwn Liebherr-Werk Nenzing GmbH
macnica Macnica Americas
marvell Marvell Technology Group Ltd.
maxim Maxim Integrated Products
mbvl Mobiveil Inc.
mcube mCube
meas Measurement Specialties
mediatek MediaTek Inc.
......
......@@ -9393,6 +9393,13 @@ Q: http://patchwork.linuxtv.org/project/linux-media/list/
S: Maintained
F: drivers/media/dvb-frontends/mn88473*
PCI DRIVER FOR MOBIVEIL PCIE IP
M: Subrahmanya Lingappa <l.subrahmanya@mobiveil.co.in>
L: linux-pci@vger.kernel.org
S: Supported
F: Documentation/devicetree/bindings/pci/mobiveil-pcie.txt
F: drivers/pci/host/pcie-mobiveil.c
MODULE SUPPORT
M: Jessica Yu <jeyu@kernel.org>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux.git modules-next
......
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